Veterinary Epidemiology

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Browsing Veterinary Epidemiology by Author "Akafete Teklu"

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    A Prevalence Study on Bovine Mastitis in Selected Areas of Ethiopia and Efficacy Test of Medicinal Plants on Commonly Isolated Pathogens of Bovine Mastitis
    (Addis Ababa University, 2010-06) Mandefro Dargie; Yasmin Jibril; Fekadu Regassa; Akafete Teklu
    The study was conducted with an objective of determining prevalence of mastitis in local zebu and cross breed lactating cows and assessing efficacy of seven phytopreparatons on commonly isolated pathogens of bovine mastitis. The study was based on 369 lactating cows with in small-scale extensive and semi-intensive husbandry practices in two selected highland and midland areas of Amhara region and in a large-scale intensive farm in Algae ATVET College. During sampling, each quarter was inspected for clinical case of mastitis and quarter milk from each cow was tested with CMT for sub-clinical mastitis. Plants were collected from their natural habitat, prepared, extracted and impregnated for efficacy test on (n= 12) isolates of Staphylococcus aureus and Streptococcus agalactia. With combined clinical inspection and CMT test, an overall prevalence of mastitis was 50.7% (16.0% clinical and 34.7% sub clinical) are cow base and 39.8% (6.3% clinical and 33.5% sub-clinical) at quarter level. A binary logistic regression analysis showed statistical associations of intensive farms (OR= 10.727, p= 0.000) with the disease than extensive husbandry practices. Cows at third and above lactation were statistically associated (OR= 5.418, P = 0.000) with mastitis than cows at first lactation. From seven plants tested for efficacy Bereza, Commicarpus pediculosus, Cyphostemum adenocaule and Xanthium stramarium showed visible zone of inhibitions. There was a significant difference' observed within mean zone of inhibition of plant types. Mean zone of inhibition from 20% Commicarpus pediculosus (29.00mm) was found statistically higher than (P